CN207500098U - The dual feedback control system of air-compressor set - Google Patents
The dual feedback control system of air-compressor set Download PDFInfo
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- CN207500098U CN207500098U CN201721089490.2U CN201721089490U CN207500098U CN 207500098 U CN207500098 U CN 207500098U CN 201721089490 U CN201721089490 U CN 201721089490U CN 207500098 U CN207500098 U CN 207500098U
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Abstract
The utility model discloses a kind of dual feedback control systems of air-compressor set, including provide low-pressure air compact unit and its to low pressure gas user low pressure line and provide pressure-air large-scale compressor group and its pressure duct to high pressure gas user, there is intercommunication pipeline between low pressure line and pressure duct and control the flow divider valve of its break-make, on low pressure line there is lowpressure stream gauge and low pressure gage, there is high-pressure gauge on pressure duct；Separately there are flow controller and pressure controller.The utility model coordinated signals without too many artificial on duty, are capable of supply that different compressed air users uses, gas supply is efficient, and power consumption is low.
Description
Technical field
The utility model is related to compressed air produce and distribution technique.
Background technology
Air compressor operation principle：After driving motor starts, communicated band drives compressor crank shaft rotation, passes through crank
It is reciprocating in cylinder that linkage is converted into piston.For outside air through filter, inlet valve enters cylinder, air quilt in cylinder
Compression pressure increases, and compressed air enters in air accumulator by the road, so as to obtain required compressed air.
Number of patent application provides a kind of air-pressure controlling side of drilling machine air compressor machine for the invention of 201310661533X
Method and system, the air pressure of the drilling machine air compressor machine have working pressure conditions and a unloading condition, the sky under working pressure conditions
Atmospheric pressure is more than the air pressure under unloading condition, and working pressure conditions include at least the first working pressure conditions and the second work
Pressure state, the air pressure under the second working pressure conditions are less than the air pressure under the first working pressure conditions；In gas storage
The first pressure regulation branch, the second pressure regulation branch and off-load branch are arranged in parallel between tank and drilling machine air compressor machine, controls the first work respectively
Make the start and stop of pressure state, the second working pressure conditions and unloading condition.Number of patent application is a kind of pneumatics of 94116568X
Machine pressure control switching device ties up to a body interior and is equipped with two cylinders side by side, is installed with low pressure sensing in two cylinders respectively
Mechanism and high voltage sense mechanism, high and low pressure sensing mechanism are made of respectively the piston, spring, adjusting screw that are sheathed in cylinder,
The impedance of piston can be set by rotation adjusting screw, makes it can be in the pressure for experiencing setting.
The state of the high-low pressure of above-mentioned two invention is unable to organic connections, and automatic control level is relatively low, it is impossible to on-demand flexible modulation.
Invention content
Purpose of utility model：
The utility model provides a kind of pressure and flow controls respectively, can export the air-compressor set of two kinds of pressed gas
Dual feedback control system
Technical solution：
The dual feedback control system of air-compressor set provided by the utility model, the light duty compressor including providing low-pressure air
Group（The air compressor machine of separate unit or negligible amounts is in parallel）And its low pressure line to low pressure gas user（What is wherein circulated is low pressure sky
Gas, the pressure design value of low-pressure air are 0.35-0.45mpa, abbreviation low voltage value）With the large-scale compressor group for providing pressure-air
（A fairly large number of air compressor machine is connected in parallel）And its pressure duct to high pressure gas user（What is wherein circulated is pressure-air, high
The pressure design value of air is pressed as 0.55-0.65mpa, abbreviation high-voltage value）；There is intercommunication between low pressure line and pressure duct
Pipeline has the flow divider valve for controlling its break-make on intercommunication pipeline.
There is lowpressure stream gauge and low pressure gage, mutual on low pressure line between intercommunication pipeline and low pressure gas user
There is high-pressure gauge on pressure duct between siphunculus road and high pressure gas user,（Or have high-pressure flowmeter, so as to high pressure gas
The pressure of the compressed air of user carries out more accurately metering and control）.
Also flow controller, flow controller connects lowpressure stream gauge by flow signal line can simultaneously receive its flow letter
Number, flow controller can simultaneously receive its pressure signal by pressure signal line C connection low pressure gages, and flow controller passes through stream
Measuring control line connection flow divider valve simultaneously can controller folding.
Another to have pressure controller, there is pressure controller pressure signal line A connection low pressure gages can simultaneously receive its pressure
Signal, pressure controller can simultaneously connect with pressure control line A connection compacts unit and control its start and stop；Pressure controller has
Pressure signal line B connection high-pressure gauges can simultaneously receive its pressure signal, and pressure controller has pressure control line B connections large size
Compressor set, which can simultaneously connect, controls its start and stop.Gas pressure and its variation of each branch are acquired in time, and make corresponding adjusting,
So that air source is fully ensured supply, and the energy consumption of compressor is not wasted.
There can be linkage sensing control circuit between flow controller and pressure controller, to realize combination regulation and control work(
Can, artificial management and control is not needed to substantially, reduces cost of labor, automatization level is provided.
Control method and course of work description：
During work, the barometrical pressure signal of high pressure sends pressure controller to, during higher than high-voltage value, pressure controller control
Large-scale compressor group processed stops.During less than high-voltage value, pressure controller control large-scale compressor group starts.
The barometrical pressure signal of low pressure sends pressure controller to, and during higher than low voltage value, pressure controller control is small-sized
Compressor set stops.When the pressure signal is less than low voltage value, it is divided to two kinds of situations：
1）When the flow signal of lowpressure stream gauge is more than preset value, flow controller control flow divider valve is opened, high pressure
The compressed air of side is flowed away a part by flow divider valve, and low-pressure side compressed air is supplemented into low pressure line, on high-tension side
Compressed air pressure is slightly declined, and can be not required to start large-scale compressor group supply（Start-stop time is reduced, saves energy
Source consumes, and extends equipment life.When its pressure is less than preset high-voltage value, pressure controller controls large-scale compressor group to open again
It is dynamic）.
2）When the flow signal of lowpressure stream gauge is less than preset value, flow controller control flow divider valve remains closed,
Flow controller, which links to sense by pressure controller, controls the progress frequency conversion of compact unit to accelerate to start（Compact unit
For frequency-changeable compressor group）, slightly supplement low-pressure side compressed air so that its pressure slightly improves（Because flow is little, without carrying
Power of boosting is excessive）.
There is provided the above process control so that in equipment using the present invention, no matter low pressure line and pressure duct, respectively
The flow of compressed air can change, the pressure of respective compressed air, which is then maintained in narrow range, to be changed.
The control operation of prediction model software may be used in pressure controller, prediction model software is by with non-linear
What the least square method supporting vector machine of object was established, both it is suitable for model prototype foundation, is also applied for production application
In, the operation of the manual simulationization of unit is converted to and is accurately globalized digital control, obtains the air draught supply of optimization
And distribution effects.
Advantageous effect：
The compressed air that the utility model can accurately provide two kinds of pressure is used for different users.And linkage control
System, without too many artificial on duty.Immediately supplement air pressure and flow, gas supply efficiency is higher, and power consumption is relatively low.It is especially logical
Inflow-rate of water turbine and the acquisition of the dual signal of pressure and feedback control so that two distinct types of with suitable gas can be obtained per family
Source, during air source parameter fluctuation can accuracy controlling restore normal supply.Whole system structure and flow are simple, the parts of use
Less, cost is relatively low, convenient for being promoted and applied in a variety of different places such as factory or living area.
Description of the drawings
Fig. 1 is a kind of structure diagram of the utility model control system；
1- large-scale compressor groups；2- compact units；3- pressure controllers；4- low pressure lines；5- pressure signal lines A；
6- low pressure gages；7- lowpressure stream gauge；8- low-voltage customers；9- flow signal lines；10- linkage sensing control circuits；11- flows
Controller；12- flow control lines；13- high voltage customers；14- high-pressure gauges；15- pressure ducts；16- pressure signal lines B；
17- flow divider valves；18- intercommunication pipelines；19- pressure control lines B；20- pressure control lines A；21- pressure signal lines C.
Specific embodiment
The dual feedback control system of air-compressor set as shown in Figure 1, including provide low-pressure air compact unit and
Its low pressure line and the large-scale compressor group that pressure-air is provided to low pressure gas user and its high-voltage tube to high pressure gas user
Road has intercommunication pipeline between low pressure line and pressure duct, has the flow divider valve for controlling its break-make on intercommunication pipeline.
There is lowpressure stream gauge and low pressure gage, mutual on low pressure line between intercommunication pipeline and low pressure gas user
There is high-pressure gauge on pressure duct between siphunculus road and high pressure gas user.
Another to have flow controller and pressure controller, flow controller connects lowpressure stream gauge by flow signal line and simultaneously can
Receive its flow signal, flow controller can simultaneously receive its pressure signal, flow by pressure signal line C connection low pressure gages
Controller connects flow divider valve by flow control line simultaneously can controller folding.Pressure controller connects with pressure signal line A
It connects low pressure gage and its pressure signal can be received, there is pressure controller pressure control line A connection compact units simultaneously can
It connects and controls its start and stop；There is pressure controller pressure signal line B connection high-pressure gauges can simultaneously receive its pressure signal, pressure control
Utensil processed, which has pressure control line B connection large-scale compressor groups and can connect, controls its start and stop.
There is linkage sensing control circuit, to realize combination adjusting function between flow controller and pressure controller.
Claims (4)
1. a kind of dual feedback control system of air-compressor set, including providing the compact unit of low-pressure air and its to low pressure gas
The low pressure line of user and the large-scale compressor group and its pressure duct to high pressure gas user, feature of offer pressure-air exist
In：Between low pressure line and pressure duct there is intercommunication pipeline, there is the flow divider valve for controlling its break-make on intercommunication pipeline；
There is lowpressure stream gauge and low pressure gage, in mutual siphunculus on low pressure line between intercommunication pipeline and low pressure gas user
There is high-pressure gauge on pressure duct between road and high pressure gas user；
Also flow controller, flow controller connect lowpressure stream gauge by flow signal line, and flow controller passes through pressure
Signal wire C connection low pressure gages, flow controller connect flow divider valve by flow control line.
2. the dual feedback control system of air-compressor set as described in claim 1, it is characterised in that：There is high pressure on pressure duct
Flowmeter.
3. the dual feedback control system of air-compressor set as described in claim 1, it is characterised in that：Separately there is pressure controller, press
Force controller has pressure signal line A connection low pressure gages, and pressure controller has pressure control line A connection light duty compressors
Group；Pressure controller has pressure signal line B connection high-pressure gauges, and pressure controller has pressure control line B connections large size
Compressor set.
4. the dual feedback control system of the air-compressor set as described in claim 1 or 3, it is characterised in that：Flow controller and pressure
There is linkage sensing control circuit between force controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089490.2U CN207500098U (en) | 2017-08-29 | 2017-08-29 | The dual feedback control system of air-compressor set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089490.2U CN207500098U (en) | 2017-08-29 | 2017-08-29 | The dual feedback control system of air-compressor set |
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| Publication Number | Publication Date |
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| CN207500098U true CN207500098U (en) | 2018-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721089490.2U Active CN207500098U (en) | 2017-08-29 | 2017-08-29 | The dual feedback control system of air-compressor set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327396A (en) * | 2017-08-29 | 2017-11-07 | 南通醋酸纤维有限公司 | The dual feedback control system and its control method of air-compressor set |
-
2017
- 2017-08-29 CN CN201721089490.2U patent/CN207500098U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327396A (en) * | 2017-08-29 | 2017-11-07 | 南通醋酸纤维有限公司 | The dual feedback control system and its control method of air-compressor set |
| CN107327396B (en) * | 2017-08-29 | 2020-02-14 | 南通醋酸纤维有限公司 | Double-feedback control system and control method of air compressor unit |
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